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Letters Patent No. 72,273, dated December-17, 1867.

IMPROVEMENT IN WOOD-TURNIN G LATHES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, DAVID Dick, of Corning, in the county of Steuben, and State otNew York, have invented a new and improved Machine for Turning Spools, Dobbins, Ste., and that the following description,

taken in connection with the accompanying drawings, hereinafter referred to, forms a. full and exact specification oi the same, wherein I have set fortl the nature and principles ot' my said improvements, by which my `invention may be distinguished from all' others of a similar class, together with such parts as I claim, and

desire to have secured to :ne by Letters Pit/tent.

This invention relates to a'new and imprpved machine for turning spools, bobbins, and other wooden articles of a similar character,.and has for its object rapidity of execution, andan automatic operation of the several parts throughout. In the accompanying sheet of drawings- Figure 1, Sheet No. 1, is a plan or top view ot' my invention.

Figui'c 2, Sheet No. 2, a sidesectional Vview of the same, taken in the line :a .'c, iig. 1.

Figure 3, a detached vertical section ofthe hopper, pertaining to the same, taken in the line y y, iig. 1.

Figure 4, Sheet No. 3, anv end viewfof the same.

Figures 5, 6, 7, 8, and 9, detached views of parts pertaining to the same, iigf being a section of iig. 6, taken in theline :v' a', and iig. Sbeinga section of fig. 9, taken in the line y' y', and Y Figure 10` Sheet No. 4, is a transverse vertical section of the invention, taken in the line Le z, iig. 1.

Similar letters of reference indicate corresponding parts. l

A represents the bed of the invention, supported at a. suitable height by legs a, or any properframing. 0n this bed A there are securedtwo'fxed heads B B', in one ot which there is placed a rotary mandrel, C,

-driven by a belt or suit-able gearing, andin the other head, B', there is placed a sliding bar, D, having a centre--vl point, a', at its inner end, while on the inner end of the rotary mandrel C there is a flanged centre-point, b, by which the article to be turned is rotated from or by said mandrel, (see more particularly fig.

The sliding bar D has two pins, c c, projecting from it, between which a cam, E, works, the shaft F of said cam haring its bearing on the head B', or attached thereto. The cam E is rotated by belts working over pulleys d on the shaft F,.or gearing may'be employed for the purpose. This .cam gives a reciprocating movement to the bar D, and by means of a crank or wrist-pin, b', extending from its side and working in a slotted radius, arm G imparts a vibratory movement to said arm, from which a rock-shaft, H, is operated through tlio'mediuin of a rod, I, 'and arm J, as shown clearly in fig. 4. The rock-shaft H has its bearings on curved arms K K,Iwhich project from the bed A, and on the end of. said shaft, opposite to that where the arm J is attached, there is secured a double crank, L, to thc upper end of which a slide, M, is connected, by a. rod, N, another slide, O, being connecte-d to the lower end of the arm by a. rod, P. These two slides, M O, work on dove-tail ways d' (Z', which project from the bed at right angles, said slides being in line with ach other, but atopposite sides of the bcd A, as shown clearly in iig. 1.

The upperarm ofthe double crank L is longer than the lower one, and it will be' seen that the Slides M O are moved by this double crank simultaneously in opposite directions, or towards and from each other, and as the slide O is connected to the shorter arm ofthe double crank L, its movement will be slower, and the distance it travels over shorter than the other slideV M, but both slides, of course, will complete thc length of their movement in the same time.

The slide M is provided with an upright plate, e, inl which two parallel horizontal slotsff are made, and to this upright plate c tool-holders P are attached by set-screwsg, which pass through upright slots t, in the holders, and through the slotsff. To the tool-holders P' P', ehisels or iinishers Q Q, are attached by screws t', which pass through oblong slots j, in the tools, into the holders. By this arrangement, the chisels or Jfinishers may be adjusted higher or lower, and also adjusted laterally, as maybe desired; and these tools or chisels operate upon the under side of the article being turned, as will be seen by referring to tig. 2, in which a spool or bobbin is shown in red .The slide O has a fixed inclined plate, c, attached to it with a gouge, l, at each side or end, and to this inclined plate there is attached a tool-holder, R, the base of the latter haviugan oblong slot or openingn., made in it, through which a. set-screw passes into the inclined plate. The tool-holder R is provided with an upright slotted portion, through which the tang n of a. plate, o, passes, said tang being capable of being raised and lowered, and secured at any desired point within the slot of the upright portion of thc tool-bolder by means of a screw-nut pin, or other suitable fastening. On the plate o there is secured, by a set-screw, p, a stock, S, to which a. series of` gouges, g, is attached. It is designed in practice to have these gouges adjustable, so that their points or'cutting-edges may be in a straight line, or in a curved line, according to the shape designed for the spool or bobbin. The gonges work at the upper surface of the spool or bobbin, and rough oil` the work, while the chisels underneath the spool or bobbin smooth or finish it. The gouges, it will be seen, owing to the manner in which they are connected to the slide O, are rendered capable of being adjusted higher or lower, er laterally, as may be desired.

To the inner end of the bar D there is attached a pendent arm, T, having one end of a horizontal rod, U, secured to its lower end, thc opposite end of rod U having an upright arm, V, attached, with an eye, r, in its upper end to work over the flanged centre-point b, (seetig. 2.) V

W is a hopper, secured to a slide, X, on an upright, s, on the head B. This hopper is open atits bottomv and is provided with springs t at each side, which extend down a trifle below it, and are curved inward to serve as holders and retain the wooden piecespout of' which the spools, bobbins,'or other articles, are turned. This hopper has at one end of it, over the centre-point a .of the bar D, a chamber, Y, in which any suitable absorbent material is placed, saturated with oil or other lubricating material, (see fig: This slide X rests upon an arm, Z, which is tted on a shaft, A', the bearing of the latter being on the head B. This shaf`t-A also has a. pendent arm, C', attached, against which a pin, u, on th'e sliding bar D acts.

The hopper W is supplied with a series of sticks, boredand roughed ofl, suitable for the device, the sticks resting upon one another in the hopper W, and retainel therein bythe springs t. lThe stick is roughed off by the gouges g, and finished by the chisels Q, which gives a smooth surface to the work. The gouges and chisels are moved automatically towards and yfrom their work, being moved towards it with a slew motion, and from it with a. quick motion, owing to the action ofthe can1-pin b' in the slot of the arm G, and when the turning of a spool or bobbin is completed, and the slidesM O move back from their work, the sliding har D is also movedback by the cam E, and the finished spool or bobbin discharged from between the centre a b, by the movement of` the eye Tof arm V, andthe finished spool or bobbin discharged, and in the mean time the hopper W descends and causes a stick, held bv the s )rin s t, to be ke t in line with the centreoints b a so that when the bar D is.

J 1 g P P 1 again moved inward, the stick will be secured between the centres and i-n proper position to be operated upon by the gouges and chisels, or finishers, when they are again moved towards the work. The centre-point a. is lubricated by the absorbent material in the chamber Y, each time the hoppei W reaches the lowest point of its descent. The hopper W, it will beunderstood, is made to rise andfall under the action of the arm 'Z, which is operated by the arm C and the pin u of the sliding bar D.

l I would remark that different forms of cutting-tools may be used, according to the kind of work ton be turned. A pointed chisel or finisher, CX, may be used, as shown in figs. 8 and 9, and a gouge, (ZX, used,- as shown in figs. 5, 6, and 7, for turning heads Yon a. spool or bobbin. IV do not confine myself to any particular shape or ferm of tool.

Having thus described. my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The two sliding tool-beds M O, provided with adjustable cutting-tools, and operated simultaneously towards and from each other, at opposite sides of the lathe-bed, by means ofthe cam E, arm J, rock-shaft H, and double crank L, all constructediand arranged to operate substantially as shown and described.

2. The slotted arm J, with the pin b' of the cam E applied to the cani E and rock-shaft H, substantially as shown, for the purpose of moving the slides M O slowly towards each other, and with a quick movement outward from each other, as set forth.

3. The rising and falling hopper W, operated automatically from the sliding bar D, through the medium ofthe arms Z C and pin u, all constructed to operate substantially as and for the purpose set forth.

4. The lubricating-chamher Y inxthe hopper W, arranged in relation with the contrepoint a', operating substantially as and for the purpose s'peeifi'ed. v

5. The flanged centre-point l, on the mandrel C, with the eye r working over said point, and operated i automatically from the sliding bar D, constructedaml operating substantially as and for the purpose set f'orth.

DAVID DICK.

Witnesses:

WM. l?. MeNAMAnA, ALEX. F. Renners. 

